Vapor-burner.



. J. M. L. FLEMING.

VAPOR BURNER.

APPLICATION FILED MAY 16. 1905.

84,657. I Patented Feb. 21, 1911.

THE mmms PETERS co., WASHINGTON, n c

VAPOR-BURNER.

Specification of Letters Patent.

Patented Feb. 21, 1911.

Application filed May 16, 1905. Serial No. 260,664.

To all whom it may concern:

Be it known that I, JOSEPHINE MARIE LOUISE FLEMING, ne IMBERT, a citizen of the Republic of France, and resident of Chateau des Ormes sur Voulzie, Seine et Marne, France, have invented certain new and useful Improvements in Vapor-Burners, of which the following is a specification.

This invention relates to new and useful improvements in burners and more particularly to that class of burners employed for hydrocarbons and similar liquid fuels.

The object of this invention is to provide a novel burner for hydrocarbons and similar liquid fuels, which is distinguished by the fact that it allows in a most simple manner of a blue flame being generated, and this especially with the aid of a very low pressure.

A further object of this invention is to provide a novel device of this character which does not need a filter or wicks of any kind, either in the inside of the vaporizer or in any of the members of the apparatus.

he present burner comprises the three usual principal parts, i. 6., the vaporizer, the vapor tube, and in incandescent burners, the mixing tube.

The present burner contains a spacious vaporizer, in which the liquid fuels coming from the storing vessel are suiflciently heated to be converted completely into vapors. This vaporizer terminates in the flame. This end of the vaporizer which is heated to a red heat, exclusively forms the superheating chamber for the vapors. It is essential that this superheating chamber contain on its inside no partition of any kind or other device, but is wholly unobstructed. From this superheating chamber the vapors escape through a small tube, and the escape of the vapors into the air takes place at the end of the tube only. The tube is of a much smaller section than the superheating chamber. The pressure which is necessary in the use of this burner is very low and is as an average value 8-15 cm. of a water column. Any wick or filter or other means for maintain ing a high pressure in the vaporizer is not necessary. The superheating of the vaporizer is obtained for the reason that the vapors can only escape very slowly through the small escape opening from the relatively large part situated at the end of the vaporizer and arranged in the flame.

The pipe used for the escape of the vaporized fuel must be outside the superheating chamber and conveyed in the burner a part of its length through the flame. It is very important that this escape tube, except at the point where it starts from the vaporizer, have no communication with the latter and with other metallic parts, as only in this ducting pipe, its entire length being without communication with other metallic parts, the vapors retain their heat and a deposit in the escape tube is completely avoided. The escape opening wherefrom the vapors are forced to the Bunsen tube is completely in the open air, and consequently permits the escaping vapor, before it enters into the flame or the Bunsen burner, to mix with suiflcient'quantities of air so that a complete combustion may take place. From the escape opening the vapor follows in the Bunsen tube a strictly rectilinear direction until it is burned.

The new burner has already been at work without interruption during 300 hours without showing a trace of solid deposit in the vaporizer or in the escape opening of the nozzle.

In the annexed drawings illustrating my invention Figure 1 is a section of a burner for incandescent lights; and Fig, 2 is a side elevation of a wall lamp.

In the form shown by Fig. 1, the upper part of the tube a, feeding the hydrocarbons forms the vaporizing and superheating chamber. This tube (1., contains no filter nor other obstructions. The mixing chamber of the Bunsen burner is designated by b, said mixing chamber being provided with a reduced lower portion 0 adapted to restrict the volume of air entering the said chamber with the vapors. The vapors are conveyed from the upper vaporizing and superheating chamber of the tube a, through the pipe (Z, having a relatively narrow section under the entrance opening of the Bunsen burner.

It follows from the drawing that the pipe (Z, except where it leaves the tube a, has no communication either with this tube or with any other metallic part, that it ends in the length under the Bunopen air at a certain sen burner, and that the escaping vapor has thus an easy opportunity of mixing with a sufficient quantity of air in order to burn above the wire netting with a blue flame.

According to Fig. 2, the fuel is stored in a vessel 2), which is at a higher level than the burner.

The described burner is adapted to be used with any kind of liquid fuel, vegetable, animal or mineral oils, petroleum, as well as for easily evaporating fuels.

1 claim:

A vapor burner comprising a mixing chamber reduced in diameter at its lower end, a vaporizing tube uniform in diameter throughout its length extending through the wall of thesaid mixing chamber and extend ing partway across the interior of said mixing chamber at a point above the junction of the reduced portion of said mixing chamber and the other portion thereof, the

said vaporizer extending vertically of the mixing chamber,. a vapor escape tube of greatly reduced capacity as compared with the vaporizing tube connected to the vaporizing chamber near its upper end and extending parallel with the said chamber in close proximity thereto, the said vapor escape tube extending through the wall of the mixing chamber and terminating below the lower end of the mixing chamber in the open air, and a support for the vaporizing tube whereby the mixing chamber and vapor es cape tube are held in position.

In testimony whereof I have hereunto set my hand in presence of two witnesses.

JOSEPHINE MARIE LOUISE FLEMING.

\Vitnesses AnoLrHE STURM, Hanson G. Coxm. 

